BREAKING: Four men arrested on suspicion of kidnapping and slavery over a 26-year period

ARRESTED: Four men face charges for crimes of slavery and kidnapping [GETTY]

The four men, from Rumney, Cardiff, aged 57, 37, 34 and 33, were taken into custody after police raided five addresses across Cardiff and Bristol on Monday morning.

They are accused of offences including servitude, forced labour, false imprisonment, kidnap and assault.

Police are not disclosing the ages of the victims but a police spokeswoman added that both are "safe and being supported by police".

The arrests were made by Gwent Police Operation Imperial team, who were working with South Wales Police and Avon and Somerset Police.

Det Supt Paul Griffiths, who leads Operation Imperial, said: "The alleged offences we are investigating are extremely serious and we would urge anyone with any information which could assist to contact the Imperial team directly dialling 01633 647174.

"Alternatively, if someone has information and would rather not pass this directly to the Police then I would urge them to contact Crimestoppers, which is independent of the Police and guarantees complete anonymity on 0800 555 111."